FIELD: mining industry.
SUBSTANCE: invention relates to the mining industry, in particular to the development of placer deposits and man-made accumulations of mineral raw materials with the subsequent strengthening of hydraulic structures. The method includes opening, mining operations, water supply and dump formation. Additionally, the bottom layer of water is pumped out in the process of scooping in the bottom-hole part of the dredge section with the transportation of process water to the geotubes located on a waterproof screen on the side of the section, made with a slope towards the section. At the time of the dredge stepping, the pumping is stopped.
EFFECT: reduced dilution of the mineral in the face, as well as decreased concentration of suspended lixiviation fractions in the water of the dredge bottom-hole.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF UNDERWATER MINING OF PLACER DEPOSITS | 2001 |
|
RU2209976C2 |
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| DREDGE WORK METHOD OF WATERCUT PLACER MINERAL DEPOSITS | 2016 |
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| METHOD FOR MINING DIFFICULT-TO-DREDGE PLACERS | 1990 |
|
SU1788267A1 |
| DREDGE | 2019 |
|
RU2732775C1 |
